Hi,
Thank you Artur,
I copied the name leter by leter from FCL vol 2
F/Lt. Z. Kustrynski.
I now see that Norman L.R. Franks has corrected it in Vol 3.
Page 196
4th April 303 Sqn Correct spelling of surname is Kustrzysnki.
However I do note your spelling of Kustrzysńki.
Found á,é,í,ó,ú but could not find "ń" so copied and pasted it.
I hope that is O.K
Alex